Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 956 · 40 questions

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

1. 1.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) sketch three ideas
2. 2.True or false: to skip writing results is good testing. (a) False (b) True
3. 3.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
4. 4.True or false: to use the same load is good testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) use a new load each time (d) repeat each test
6. 6.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
7. 7.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
8. 8.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
9. 9.🧪 A paper bridge was tested three times. It held 350 g, 320 g and 320 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) read the challenge rules (c) build it with straws (d) strengthen the weak part
11. 11.🧪 A paper bridge was tested three times. It held 310 g, 190 g and 220 g. What is the mean (average) load it held, in grams?
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the strongest? (a) design B (b) design A (c) design C
13. 13.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) all of them (d) none
14. 14.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) the first is wrong (d) to use more paper
15. 15.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) measure the same way (d) test it only once
16. 16.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
17. 17.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) sketch three ideas
18. 18.🧪 A paper bridge was tested three times. It held 270 g, 220 g and 320 g. What is the mean (average) load it held, in grams?
19. 19.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
20. 20.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
21. 21.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
22. 22.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
23. 23.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) use a new load each time (d) test it only once
24. 24.🧪 A paper bridge was tested three times. It held 240 g, 110 g and 160 g. What is the mean (average) load it held, in grams?
25. 25.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
26. 26.🧪 A paper bridge was tested three times. It held 360 g, 220 g and 290 g. What is the mean (average) load it held, in grams?
27. 27.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) load it with coins (b) strengthen the weak part
28. 28.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
29. 29.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) skip writing results (d) use a new load each time
30. 30.🧪 A paper bridge was tested three times. It held 280 g, 130 g and 160 g. What is the mean (average) load it held, in grams?
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 170 g and design C held 220 g. Which design was the weakest? (a) design B (b) design A (c) design C
32. 32.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
33. 33.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) measure the same way (d) record every result
34. 34.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
35. 35.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
36. 36.🔍 Which is the odd one out? (a) guess, do not measure (b) use the same load (c) change only one thing (d) measure the same way
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design C (b) design B (c) design A
38. 38.🧪 A paper bridge was tested three times. It held 210 g, 100 g and 140 g. What is the mean (average) load it held, in grams?
39. 39.True or false: to skip writing results is poor testing. (a) True (b) False
40. 40.True or false: to measure the same way is good testing. (a) False (b) True

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